Quasi-spherical accretion in low-luminosity X-ray pulsars: Theory vs. observations

K. Postnov, N. Shakura, A. Kochetkova +1

Quasi-spherical subsonic accretion can be realized in slowly rotating wind-fed X-ray pulsars (XPSRs) at X-ray luminosities <4 10^{36} erg/s. In this regime the accreting matter set…